Home / 11,687.57-17,531.36-2,922.48

Finding the Fourth Proportional to 11,687.57, 17,531.36 and 2,922.48

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Solution

The fourth proportional to 11,687.57, 17,531.36 and 2,922.48 is: 4,383.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,687.57 : 17,531.36 = 2,922.48 : x
  2. Step 2: Convert to fraction form
    11,687.57/17,531.36 = 2,922.48/x
  3. Step 3: Cross multiply
    11,687.57x = 17,531.36 × 2,922.48
  4. Step 4: Simplify right side
    11,687.57x = 51,235,034.36
  5. Step 5: Solve for x
    x = 51,235,034.36/11,687.57
  6. Step 6: Final answer
    x = 4,383.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.